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MODEM 32144
6.5 Message Format
The message format for V.25 bis
DTE-to-DCE communications is
summarized below:
6.5.1 A
SYNCHRONOUS
This format uses one start bit,
8-bit data units, and a 1-unit stop
bit. The 8-bit data units are formed
by a 7-bit IA5 character and an
even parity bit.
6.5.2 S
YNCHRONOUS
O
RIENTED
This format uses consecutive 8-bit
data units formed by a 7-bit IA5
character and an odd parity bit.
136
MARK|MESSAGE|CR|LF|MARK
, C
-
HARACTER
|SYN\SYN\STX|MESSAGE|ETX|
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